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481  Bitcoin / Electrum / Re: [ANNOUNCE] Electrum - Lightweight Bitcoin Client on: March 20, 2013, 08:06:53 PM
It's really too bad it was written in Python, I don't have the time to learn a new language at this point. I would have loved to contribute - I have so many ideas, and Electrum is exactly the kind of client I wanted.

Electrum (the client) was also ported to Javascript (implemented as a Chrome extension), if you're more familiar with that.
I can't find the URL right now, though.
482  Bitcoin / Project Development / Re: 2^256 Deep Space Vagabond aka the Lost Bitcoin Finder on: March 20, 2013, 08:01:58 PM
How to add extra address in lost_coins list?  Huh

and how to install "local bitcoind + ABE installation" for locally fetching data?

The list is hard-coded in the current implementation. Adding support for custom hotlists is on my to-do list but
not a high priority at this time.

I am willing to make custom builds with a user-defined hotlist hard-coded available to donators.

The support for ABE is no longer working at this time and I don't have enough time/motivation to work on it right now Sad
483  Bitcoin / Wallet software / Re: Has someone evaluated the security of the alternative clients? on: March 20, 2013, 07:43:36 PM
IIRC, BkkCoins (as well as many others) recently reviewed the whole Electrum source code before deciding
to use it.  I also go over the code from time to time.

I can't speak for the other clients, as I'm less familiar with them.
484  Bitcoin / Electrum / Re: High-quality Electrum builds for Windows on: March 17, 2013, 09:46:40 PM
OK, I've managed to rewrite a compact build using open-source autoit (aka ahk) scripting. It's still a work in progress. Also I didn't bother with the console functionality now that this is handled inside Electrum itself.

The good news is that this is a lightweight, transparent and auditable process. Expect new compact builds soon!

; Notes:
; -- requires the latest release of AHK and AHK2EXE, PyQt 4.9.6, Python 2.7 and the 7-zip DLL
; -- first, do a git pull master of the Electrum source code and copy that to %APPDATA%\Electrum_SysFiles


The packer script:

Code:

WhichFolder = 1.7.0.1

FileDelete, %A_scriptdir%\Electrum.arc

runwait, cmd /c del *.pyc /s, %WhichFolder%, hide

runwait, d:\tools\7za.dll a "%A_scriptdir%\Electrum.arc" "%WhichFolder%" -r -sfx, d:\tools

FileCount = 0
Loop, %WhichFolder%\*.*, , 1
   FileCount ++
msgbox %FileCount% items compacted.  



The launcher script:

Code:

process, close, python.exe
sleep 100

Rel = 1.7.0.1
commandline = %1% %2% %3% %4% %5% %6% %7% %8%
ReleaseDir = %appdata%\Electrum_SysFiles\%Rel%
  

if 1 !=
 if 1 not contains -P,-w,bitcoin
  {
  exitapp  
 }

 commandline = -P -w "./electrum.dat"
 ReleaseDir = %a_scriptdir%\Electrum_SysFiles\%Rel%


ifNOTexist, %ReleaseDir%
{

FileCreateDir, %ReleaseDir%

Gui, Add, text,, Please wait while unpacking files to the "Electrum_SysFiles" directory...
Gui, Add, Progress, vlvl  -Smooth 0x8 p0 w350 h12 ; PBS_MARQUEE = 0x8
Gui, Add, text,,  Thanks for using flatfly's optimized builds of Electrum!
Gui, -MinimizeBox
Gui, Show, , Electrum for Windows (flatfly build)
; SetTimer, Push, 61  

sleep 850
 
 FileInstall, Electrum.arc, %ReleaseDir%\Electrum.arc, 1
 runwait, %ReleaseDir%\Electrum.arc -y -o"%ReleaseDir%\.." ,, hide
}
    
Groupadd, bado, Electrum 1
Groupadd, bado, Message

EnvSet, path, %ReleaseDir%\`%System`%;%ReleaseDir%\C_\Python27;%path%
Setworkingdir, %ReleaseDir%\C_\ElectrumPY


HourGlassON()
run "%ReleaseDir%\C_\Python27\python.exe"  "%ReleaseDir%\C_\ElectrumPY\electrum" %commandline% ,,hide useErrorLevel
WinWait ahk_group bado
WinActivate
WinShow
HourGlassOFF()


FileDelete, %ReleaseDir%\Electrum.arc
exitapp


HourGlassON()
{
   CursorHandle := DllCall( "LoadCursor", Uint,0, Int, 32650 )
   DllCall( "SetSystemCursor", Uint,CursorHandle, Int, 32512)
}

HourGlassOFF()
{
   DllCall( "SystemParametersInfo", UInt, 0x57, UInt,0, UInt,0, UInt,0 )
}



485  Bitcoin / Electrum / Re: Should I make a new portable version? - yes :) on: March 17, 2013, 11:46:41 AM
@flatfly:
Would you be interested in making a portable version of the Litecoin client?
And could you make that it shows the balance of each address like in Electrum (maybe copying some code)?
I appreciated your "old" Electrum builds Smiley

I offer a 120 USD (~6 BTC) bounty for a portable Litecoin client with address balances.

Hi bitcats, are you still interested in this? Finally I have some time to look into it Smiley
486  Bitcoin / Project Development / Re: 2^256 Deep Space Vagabond aka the Lost Bitcoin Finder on: March 13, 2013, 05:52:56 PM
New update released (1.475), now using the lost_coins Hotlist by default.
Also, the application can be fully used offline now. Only if you need to query for live balances will it connect to the Internet.
487  Other / Beginners & Help / Re: Random Bitcoin Addresses? on: March 13, 2013, 05:42:25 PM


This question needs to be addressed by developers of each wallet. I looked through some of the code for the Electrum wallet, and it appears to use the Python random number generator. I could be wrong, but that would create even a smaller pool of Electrum wallet 'seeds'. Imagine installling a new wallet on your computer to find that there's already money in it!


Are you sure?
 IIRC, Electrum uses the OpenSSL RNG, not Python.
488  Bitcoin / Electrum / Re: PLEASE HELP: Bitcoin client "Electrum" won't start on: March 13, 2013, 05:39:40 PM
Are you using an old version of Electrum? There was a known issue with the GUI setting that has been fixed since. You might have to fix it manually. See:

https://bitcointalk.org/index.php?topic=100502.msg1419230#msg1419230

489  Economy / Services / Re: 0.1 BTC Reward. Find out if these are worth anything on: March 03, 2013, 05:55:07 PM
I am sorry to tell you that they do not worth anything, proofs:
http://lmgtfy.com/?q=%22A+savings+plan+to+your+family%22
http://lmgtfy.com/?q=%22Catalog+to+be+sent+without+charge+when+account+is+Paid+in+full%22

If is not in Google it is not worth anything.

BTC 1R2sWeVhFitB8zVbkrmdSoXzaQRsw6cfh

 Wink

FTFY... (you didn't type that properly):
http://lmgtfy.com/?q=%22A%20savings%20plan%20for%20your%20family%20purchases%22%20stamps

-> Quite a few results!
490  Bitcoin / Bitcoin Technical Support / Re: Sent BTC to Blockchain.Info Wallet, Coins Immediately Disappeared? on: February 28, 2013, 07:09:08 PM
Hmmm it seems that it has just confirmed...
491  Bitcoin / Bitcoin Technical Support / Re: Windows 7 strange connection attempts to intersango.com on: February 28, 2013, 07:05:36 PM
By any chance, are you using Electrum?
Older versions of Electrum connect to Intersango to get exchange rates.
(The currency conversion feature can be disabled in the settings, if your version is not too old)
492  Bitcoin / Project Development / Re: [BOUNTY - EARNED!] 0.256 BTC - Deep Space Vagabond on: February 21, 2013, 08:27:08 PM
And the winner is..... Mushroomized!!

That was an easy one wasn't it? Smiley

Please post or PM your address so I can pay the 0.256BTC bounty.
493  Bitcoin / Bitcoin Discussion / Re: Reddit accepts bitcoins! Fuck yeah! on: February 14, 2013, 08:37:04 PM
That's a MAJOR milestone on the adoption roadmap.
494  Other / Beginners & Help / Re: Good resource covering all the different wallet options? on: February 12, 2013, 05:52:21 AM
I think Electrum is the only client that matches these criteria.
495  Bitcoin / Bitcoin Discussion / Re: Rare address hall of fame on: February 09, 2013, 09:36:48 AM
Awesome - List updated. Good luck finding the first all-lowercase address ever Smiley
496  Other / Beginners & Help / Re: POLL: Which bitcoin client do you use? on: February 08, 2013, 06:26:03 PM
If you are running a Bitcoin business selling goods/services and need to receive Bitcoins, a full client is your only logical choice.
A full client is the only way to verify transactions, check for double spends without having to trust anyone else.


That's not completely accurate, there are several levels of trust.  I use Electrum because it combines the small local footprint of a light client, without the need to trust a third party with my private keys.  Electrum basicly uses a specially designed p2p network overlay to offload the blockchain database to a remote server (stratum server) but it keeps the wallet.dat local, and all transactions are created and signed locally.  While it's true that certain blockchain based deceptions can theoretically be performed against a particular Electrum client, this is far from an easy fraud method, and there is no case of this happening in the wild that we know of.
Actually it is completely accurate.  Nagato specifically states that the only way to verify transactions and check for double spends with a client such as Electrum is to trust someone else.  You then indirectly point out that Electrum requires you to trust stratum server to verify transactions and check for double spends.

Wrong! Electrum clients verify transactions locally using SPV, the light-client payment verification method originally suggested by Satoshi. Which means a rogue server just can't show clients any fake transaction. There are other attacks possible in theory, but to my knowledge this is not one of them.
497  Bitcoin / Bitcoin Discussion / Re: Weird address collection on: February 05, 2013, 08:54:00 PM
1odfsrirfbxtwjoviseqdnuixwvhsnPbJ

29 lower case letters in a row. Only two uppers and the prefix of 1.

Really impressive!
Again, please sign something with it so I can add it to the collection - otherwise it doesn't
make it any different than something like 1BitcoinEaterAddressDontSendf59kuE (which is a
valid address but wasn't "generated" - nobody has the private key for it, see top post)
498  Bitcoin / Bitcoin Discussion / Re: A simple definition of "lost" coins on: February 05, 2013, 07:28:42 AM
Hmm... I am not willing to modify my list and criteria just yet - at least for LARGE (10,000btc +) holdings! 

Now, I do agree that most of the points made so far do apply to smaller holdings, but seriously, do you really believe anyone with USD 200,000+ invested in such a volatile thing as bitcoin will let it lose 90% of its peak value and not use any kind of stoploss rule? After all, isn't this one of the basic rules of investing?

Anyway, let's try a different, slightly more aggressive approach: I will tag all of the above coins as LOST 4EVER and will only untag an address if its owner ever spends a coin from it OR just simply ADDS 50btc or more to it (which might be preferable from a security point of view as it does not require any cold storage private key to be used.)

I know this is a controversial statement (and please keep bringing good arguments), but until I see hard evidence, I still strongly believe that my list is 95%+ correct.
499  Bitcoin / Electrum / Re: High-quality Electrum builds for Windows on: February 03, 2013, 05:51:54 PM
Yeah AHK is often a great answer to this type of little problems Smiley

PS: I'm actually working on a new, purely AHK-based solution for optimized
Windows builds. That would (finally) make my build process fully open source
and deterministic Smiley
500  Bitcoin / Electrum / Re: Electrum - Bitcoin client for the common users (friendly and instant) on: February 03, 2013, 05:45:28 PM
Maybe in a year it will be worth brute forcing. Reminds me that I never wrote down the seed for my electrum testing client either.  Roll Eyes
It probably is a 12 characters password... Maybe my grandchild will brute force it. I will leave them in my testament.

2 more tips from a different perspective...

- open a notepad and try to imagine yourself choosing a weak password for something you don't care much about (registering for a forum, etc) - actually type the passwords that naturally come to your mind. Once you've got a few, try them in electrum.

- this is a long shot, as I'm not very familiar with OSX, but if you didn't configure encryption right away when you first installed Electrum, try to use OSX's Time Machine feature to search for the oldest version of the electrum.dat file that you can find. That one should be unencrypted and have no password!

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